Home / 19,613.81-27,067.22-10,661.31

Finding the Fourth Proportional to 19,613.81, 27,067.22 and 10,661.31

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Solution

The fourth proportional to 19,613.81, 27,067.22 and 10,661.31 is: 14,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.81 : 27,067.22 = 10,661.31 : x
  2. Step 2: Convert to fraction form
    19,613.81/27,067.22 = 10,661.31/x
  3. Step 3: Cross multiply
    19,613.81x = 27,067.22 × 10,661.31
  4. Step 4: Simplify right side
    19,613.81x = 288,571,969.95
  5. Step 5: Solve for x
    x = 288,571,969.95/19,613.81
  6. Step 6: Final answer
    x = 14,712.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.